00001 /* 00002 * Discrete wavelet transform 00003 * Copyright (c) 2007 Kamil Nowosad 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVCODEC_DWT_H 00023 #define AVCODEC_DWT_H 00024 00031 #include "avcodec.h" 00032 00033 #define FF_DWT_MAX_DECLVLS 32 00034 00035 enum DWTType{ 00036 FF_DWT97, 00037 FF_DWT53 00038 }; 00039 00040 typedef struct { 00042 uint16_t linelen[FF_DWT_MAX_DECLVLS][2]; 00043 uint8_t mod[FF_DWT_MAX_DECLVLS][2]; 00044 uint8_t ndeclevels; 00045 uint8_t type; 00046 void *linebuf; 00047 } DWTContext; 00048 00056 int ff_j2k_dwt_init(DWTContext *s, uint16_t border[2][2], int decomp_levels, int type); 00057 00058 int ff_j2k_dwt_encode(DWTContext *s, int *t); 00059 int ff_j2k_dwt_decode(DWTContext *s, int *t); 00060 00061 void ff_j2k_dwt_destroy(DWTContext *s); 00062 00063 #endif /* AVCODEC_DWT_H */
1.5.8